# Bizarre Form Triangulated

Posted by Fabricio SANTOS May 12, 2012

In this third module we are learning how to make a surface by triangular pieces.

So we decided to design a void column, but modifying its bottom and top like an open flower.

We use a Grasshopper definition that let us convert the object into a triangulated surface.

In addition, we could modify the size of the slaps that would make the union between the unroll triangles.

Then we had to decide in which side of the void column we want to show the flaps and the label.

So we order Flip command in Rhino in order to show the flaps inside the void column and the label of triangles in the outside to see it clearly.

Then we made the nesting phase in Autocad to take the cardboard to the maximum.

The computer for the CNC Laser started by printing the number of the triangles (red layer), after the triangles (red layer) and finally the border of each flap (magenta layer).

The machine only took thirteen minutes in each cardboard panel to cut it (burn it).

Finally we obtained 243 numbered triangles with its flaps and three numbers in each vertex.

So we had to match the triangles joining them by the same numbered vertex.

So it was very useful to extend all the numbered triangles on the table to find them quickly by looking at the three-dimensional computer model.

Also many flaps were broken so had to have someone constantly restoring them with adhesive tape and cutter.

Here we can see a detail of how different triangles meet at a vertex with the same number. And the flaps are on the other side.

The delicate assembly phase required the collaboration of several people.

Detail of the interior with the flaps.

Detail of the outside with the numbered vertex.

This was the piece that resulted.

It took a long time to unite as many pieces, but we had the help of the components of other groups, so almost the entire class participated in the construction of this object.

Thanks to all of them.

Cristina López + Luis Díaz + Fabricio Santos + Lill Maria Rosita Hansen + Antonio Hernán-Pérez + José Antonio López-Dedid + Francisco Mateos